GCC can generate vector instructions now, through builtins or through the autovectorizer. So, GCC should be able to generate VIS instructions.
-- Summary: SPARC VIS instructions are not generated by GCC Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: phython at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: sparc*-- GCC host triplet: sparc*-- GCC target triplet: sparc*-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18230